Well, as much as I hope to see a GTA (V port..?) to PS Vita, I don't think it'll actually happy.. This looks like one of those typical replies they send towards people with suggestions and I can't really believe that GTA V would be ported to PS Vita. Though the Vita has a lot of potention, I don't think that it'll play GTA V that easily...
They should just make a patch for remote play so we can already play it on our vita via our ps3.